Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION PLANS - NONVESTED SHARES (Details)

v3.5.0.2
STOCK-BASED COMPENSATION PLANS - NONVESTED SHARES (Details)
$ / shares in Units, $ in Millions
 9 Months Ended
Sep. 30, 2016
USD ($)
$ / shares
shares
Sep. 30, 2015
USD ($)
Performance Awards    
STOCK-BASED COMPENSATION PLANS    
Weighted-average volatility rate 39.30% 30.00%
Risk-free interest rate (as a percent) 0.90% 0.70%
Performance Awards | Minimum    
Additional information    
Performance period 2 years 2 years
Performance Awards | Maximum    
Additional information    
Performance period 3 years 3 years
Equity Awards    
Shares    
Nonvested at the beginning of the period (in shares) 1,854,000  
Granted (in shares) 1,889,000  
Vested (in shares) (666,000)  
Forfeited (in shares) (66,000)  
Nonvested at the end of the period (in shares) 3,011,000  
Weighted Average Grant-Date Fair Value    
Nonvested at the beginning of the period (in dollars per share) | $ / shares $ 19.97  
Granted (in dollars per share) | $ / shares 9.28  
Vested (in dollars per share) | $ / shares 19.80  
Forfeited (in dollars per share) | $ / shares 17.10  
Nonvested at the end of the period (in dollars per share) | $ / shares $ 13.36  
Liability Awards    
Shares    
Nonvested at the beginning of the period (in shares) 475,000  
Granted (in shares) 715,000  
Vested (in shares) (230,000)  
Forfeited (in shares) (26,000)  
Nonvested at the end of the period (in shares) 934,000  
Weighted Average Grant-Date Fair Value    
Nonvested at the beginning of the period (in dollars per share) | $ / shares $ 21.37  
Granted (in dollars per share) | $ / shares 9.09  
Vested (in dollars per share) | $ / shares 20.64  
Forfeited (in dollars per share) | $ / shares 16.55  
Nonvested at the end of the period (in dollars per share) | $ / shares $ 12.29  
Restricted stock units    
Shares    
Vested (in shares) (60,948)  
Additional information    
Units vested but not yet issued 454,900  
Nonvested shares    
Additional information    
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the Stock Incentive Plan and the prior plan | $ $ 32  
Weighted-average period over which cost is expected to be recognized 2 years  
Value of share awards vested | $ $ 15 $ 20